Isograptus caduceus imitatus |
Isograptus victoriae maximo-divergens |
Biostratigraphy |
Australia |
3b |
3b |
1 |
|
|
Isograptus caduceus imitatus |
Isograptus victoriae maximo-divergens |
Biostratigraphy |
Australia |
3b |
3b |
1 |
|
|
Isograptus caduceus imitatus |
Isograptus victoriae maximo-divergens |
Biostratigraphy |
North America |
3b |
3b |
1 |
|
|